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Question 21076
NEET Chemistry · Easy

Structure of Atom: Aufbau principle MCQ

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Aufbau principleEasyQuestion 21076

Question

Electrons fill orbitals in order of:

  1. A
    Increasing energy
    Correct
  2. B
    Increasing spin only
  3. C
    Alphabetical order
  4. D
    Random arrangement

Correct answer

Increasing energy

Explanation

Lower-energy orbitals are filled first.

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